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Heads/cam Motor really shakes

This is a discussion on Heads/cam Motor really shakes within the Internal Engine forums, part of the LSx Technical Help Section category; I just did a tsp stage 2.5 head and ms3 install and with just a base mail order tune from ...

  1. #1
    Junior Member
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    99 camaro

    Heads/cam Motor really shakes

    I just did a tsp stage 2.5 head and ms3 install and with just a base mail order tune from speed inc. the motor really shakes. Is this normal? It does seem a bit rich but I did not expect it to shake like this. Everything seems o.k driving and idling. I am scheduled to go on the dyno on the 13th. Do you think it will smooth out at the dyno? I had it on a gm code scanner and it showed nothing wrong, no misfires, but it idles like it misfires? Any help or info will be appreciated. This is a 99 a4 camaro.
    Last edited by andy670ho; 03-29-2007 at 07:00 PM.

  2. #2
    Senior Member bills98ta's Avatar
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    White
    1998 Trans Am

    You should invest in a HP Tuner so you can fine tune the fuel trims. I also had the tsp tune... They use LS1 edit, but the HP Tuning software works with locked tunes also. Mine was real fat at idle until I adjusted it down. Now it launches great !!! Good Luck !!!

  3. #3
    Member M6HUGGERSS's Avatar
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    millenium yellow
    2002 corvette Z06

    on an untuned engine id say it is normal for that sized cam.

    get a dyno tune.
    315rwhp 98 SILVER Z28 (3500lbs)- SOLD
    400rwhp 99 HUGGER SS (3375lbs)- SOLD
    340rwhp 02 YELLOW Z06 (3040lbs)

  4. #4
    member since may 2000 nhraformula's Avatar
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    black
    2000 nhra edition formula

    sounds like idle is set to low.
    2000 nhra edition formula
    a few bolt ons, 379 rwhp
    11.96 @113.25

  5. #5
    Local Bum TARZAN's Avatar
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    Cobra, Z28, GN, F250

    Yeah, its to be expected with that size cam and no professional tune. Once it comes off the dyno you should be fine though...

    -Will

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